Practice problem
Write 55,55555{,}55555,555 in expanded notation.
55+55555+55555+555
500,000+5,000+500+50+5500{,}000+5{,}000+500+50+5500,000+5,000+500+50+5
55,000+550+555{,}000+550+555,000+550+5
50,000+5,000+500+50+550{,}000+5{,}000+500+50+550,000+5,000+500+50+5
Type a concept, like “slope” or “photosynthesis”.